Vehicle jack



A. JENSEN VEHICLE JACK April l, 1952 Filed Feb. 28, 1947 INVENTIOR `While the drawings disclose only screw and .nut type of lifting device, it is of course, uider'stood, that any type of lifting device, which Patented Apr. 1, 1952 UNITED STATES PATENT OFFICE VEHICLE JACK Aage Jensen, Kenosha, Wis.

Application February 28, 1947, Serial No. 731,657

10 Claims. l

My invention relates to improvements in vehicle jack.

One object is to promote operating ease; permitting the operator to stand erect, and to incorporate in the lifting mechanism means to reciprocate the shifting position of the lifting device When in use without incurring frictional resistance to theV lifting device mechanism. Briefly; in combinatioirmy improvements follow the principle, and the adaptability, of a universal joint to changeability of lift direction. Therefore, in the engaged combination, I have incorporated improvements in vehicle part construction and design, which will encourage proper use and placement for any type of lifting device using a provided vehicle part to lift with and against. 4

It is obvious that the trend in car design is to lower the gravitational center, by using still smaller diameter wheels; and consequently, fenders and other body parts will be altered to meet this trend. And in addition, weight reductionwill figure prominently in specifications of vehicles in the immediate future. The technique of wheel removal now depends upon lifting the vehicle body to an unsprung relation with the wheel to be removed. Therefore, for these and I other obvious reasons, whichv will follow in description, it is reasonable to anticipate that the vehicle bumper, or provided vehicle parts, will bulk, and weight, in a vehicle lifting device is not necessary or desirable. Such bulk and weight are used in conventional bumper lifting devices only to compensate for excessive friction in the lifting mechanism, caused by faulty placement means of the load weight, on -a lifting device.

still further object of this invention is'to facilitate safe operation of alifting device Ausingthe vehicle bumper, or vehicle parts,- by providing means on or within the bumper, or vehicle parts, L which will maintain safe, yet flexible, connection vwith a vehicle lifting device.

the jack has a load lifting member acting in the same lifting utility, as the aforesaid nut, is obviously anticipated herein as a lifting device to which this invention applies itself. Therefore, an outstanding feature of this invention consists, generally, of the novel connective means between a vehicle part and a vehicle lifting device, and their relation one to the other.

With reference to the drawings: Figure l is a View in side elevation of a jack-screw jack in positionagaint a vehicle bumper. Figure l-A is a cross sectional view along the dotted line A-A as denoted in Figure 1. Figure 2 is a view in cross section slightly above the dotted line A-A, disclosing, in top plan relief, the load lifting member. Figure 3 is a view in front elevation of the lower portion of the lifting standard, and, applies only to Figure l. Figure 4 is a view in perspective of a vehicle bumper or vehicle part; a lifting device,vshowing, in assembly projection, the relationship of the various novel parts which provide universal alignment with the load direction thrust. Figure 5 is like-wise a view in perspective of an assembly projection denoting a bumper hook confogjming to the bumper form, or outline. And, Figures 4 and 5, collectively, illustrate the interehangeability of parts and design, in several novel parts thereof, without departing from the merits, or initial purpose, of either. Figure 6 is a top plan view of the jack head substantially as in Figure 1. Figure 7 imparts further elaboration, in perspective projection, of a reversal in vparts adaptability when compared with Figures 4 and 5.

With further reference to the drawings in numerical detail: l is an upright standard, supy porting, uppermostly, an overextending standard head 2; which will be better understood as a to engage with receptive female bearing means l5, as in Figure l, in the U-shaped member 6; said U-shaped member 6 being pivotally suspended from the stub shafts 5. i

In the various figures, respectively, 4, 5, and 7,

pivotal bearing means identical in function to male part 5 and female part l5 will appear, in

' description as 5-A and l5-A, 5-B and Iii-B, 5-C

and I'5-C: vAnd likewise, the U-shaped member B hereinafter referred to as yoke part 6 appears in modified form in Figs. 4, 5 and 7 as yoke part member 6-A now having a stub shaft projection 8, from the base of the yoke 6, and a collar I4, on said stub shaft 8 projection; and again, a yoke part member 6B having a plain stub shaft projection B-A, projecting, from the base of said yoke part, and further, a yoke part member B having a socket portion 9, projecting from the base thereof. On the body of the load lifting member 4 means are provided to support a roller 'I with a face formed to Vengage the upright standard I. From the base portion of a U-shaped yoke part 6 provisions are made to carry a generally J-shaped load engaging hook I2, having bracing means I I, co-operating therewith. More broadly,v

in anticipation of future trends, the base projection 8, or base projection 8-A, or base .projection 9, respectfully, in Figures 45, and 7, project fromA the U-shaped yoke member 6-A, to B-C, inclusive,

instead of the J-shaped hook I2, andfbracingA means II.

The numeral I0, is -essentially,.a vehicle part having1socket'means 9A,. therein,` to engage, pivotally, a stub shaft member 8, from the yoke part .Ii-A, as in Figure 4; and on said stub. shaft member 8, a collar I4, retains said `pivotal engagement, against end thrust, by dropping' in backofthe remote edge of socket means .9-A.

And in Figure 7, where engagement means are reversed, said collar I4, on stub shaft 8-B, projecting from the vehicle part 10,- drops in back of the foremost edge of socket means .9, which isa base projection from the yoke part I-C. And

thus; in like description, relative'to Figure 5, av

stub shaft .projectionV 8-A'from the `yoke member 6-B, engages socket means 9-B in a'bumper engaging` hook I 2-A. And said hook` I2-A has a body conforming -to the vehiclebumper IU, shape, andy as a means to retain engagement, between said stub shaft -A and said socket means 9-B, a hole I'l, is provided in the stub shaft 8-A, through which a pin may be'inserted.l Of course, it-is anticipated that a collar'I4 would do aswell as the 'pin' I1, on the free end of said 'stub shaft 8-A. And; for `the purpose of concealing in non-use, socket means 9-A-in vehicle part I0, a shield I3, having a self-retaining'-spring meanswith said part 9-A; is provided. A shield I3-A, likewise is used to conceal a vehicle part stub shaft projection8-B, on the bumper I0.

AI loop-member y|(i, hinging ,to the standard I, is `provided to engage vthe bumper hook I2 when saidjack is not operating, thus preventing disjointing at bearingmeans 5, and vI However, .it is anticipated that notched bearing means I5,

and correlative-stub shaft bearing means 5, could besubstituted by'solid female bearing means ILC and stub shaft correlative bearing means 5C, thereby eliminating the use of said loop IE.

Again referring to bumper vhook I2-A. obvious that socket means S-B, therein, could be'interchanged lwith stub shaft means 8, in the yoke part E-B, without departing from the merits of lthis invention; Thus, in viewof .the foregoingv interchangeability of parts adaptation, and description preceding the same, it is plainly evident that interchangeability of parts, betweenthe various figures in the drawings isanticipated.

Therefore, I do not Wish to limit myself, in strict.

thefstandard'and.extendingglaterally therefrom, a.

It is- 4 jack screw journaled in said bracket for rotation therein, means to turn said jack screw, a load lifting nut threadably engaged by said jack screw, a roller mounted on one side of said nut for rolling engagement with said standard, a U-shaped yoke pivoted to said nutl and having means thereon for engagement with the bumper of an automobile.

2. The structure of claim l wherein said last named means comprises a stub shaft projecting from the base of the U-shaped yoke, said stub shaft projecting in a direction opposite to the arms of the yoke, and adapted to be engaged with an opening in a bumper of a vehicle.

3. The structure of claim 2 and a locking collar on .the outer end of the stub shaft, said locking collar being adapted to retain said yoke in engaging position by hooking behind the remote edge of .the opening.

4. The structure of claim 1 wherein said last namedrmeans comprisesa-socket in the base of the U-shaped yoke having an openingtherein, said opening being adapted to receive a projection mounted on ayehicle bumper.

5. Thestructure of claim 1 wherein said last named-meanscomprises a J-shaped loadengaging hook fixed -to the base of theyoke in aplane normal tothe arms thereof.

6.1 The structurevof claim 5-and a brace extendingl from the yoke rin a direction opposite to the Aarms thereof and above thelower end of the hook, said brace being adapted to contact the.r bumperand maintain it in spaced relation to the4 jack.

'7. In combination, a standard, a load lifting member, means to raiseand lower the load ylifting member relative to the standard, a. U.shaped yoke pivoted to said load lifting member, la vehicle having a partto be lifted, andengagement means. between said yoke andsaid part, and'4 said engagement means comprising a socket in the base of vsaid yoke and a stub shaft projecting laterally fromsaid part.

8:1ncombination, astandard, a load lifting member, means to raise and lower the load lifting member relative to the standard, a.. U-shaped.

yoke pivoted to said load liftingmember, a vehicle having a part to be lifted, and engagement` means between said yoke and said part, and wherein said engagement means comprises a stub shaft projecting from the base of said yoke, said stub shaft having a collar on the end remote from the yoke, and a socket'. in said'part to receive` said shaft.

9. In combination, a standard, a load.lifting v member, means toraise and lower the Aload lifting member relative to the standard, a .U-shaped, yokepivoted to said load lifting member, a vvehicle having a part to be lifted, and engagement means betweenvsaid yoke and said part, and wherein saidv engagement meansv comprisesY a: stub shaft projecting from the base of said yoke, a `bracket on said part, said brackethavingra socket in a face thereof to receive said shaft:

l0. In combination, a standard, aaload lifting member, means to raise and lower the loadt lifting member relative to the standard, a" U`-l shaped yoke pivoted to said load lifting member',- a vehicle having apart to be lifted, and engage ment means between said yokeV and'saidr part," andjwherein said engagement means comprises a socket in .thebaseofjsaid yoke, `a bracket on'said 5 part. said bracket having a, stub shaft thereon Number to be received into said socket. 1,795,391 AAGE JENSEN. 1,828,913 2,028,905 REFERENCES CITED 5 2,149,248 The following references are of record in the 164,621 le of this Ipartent:

UNITED STATES PATENTS Number Number Name Date 476.625 1,101,598 Weinke June 30, 1914 791,725

Name Date Hansen Mar. 10, 1931 Toomey et al Oct. 27, 1931 Hein Jan. 28, 1936 Haferkorn Feb. 28, 1939 Pfauser July 4, 1939 FOREIGN PATENTS Country Date Great Britain Dec. 8, 1937 France Dec. 16, 1935 

